Displayed Average Noise Level (Danl); Test Limits (With 0 Db Input Attenuation); Test Description; Procedure - Agilent Technologies PSA Series Manual

Displayed Average Noise Level (DANL)

Test Limits (with 0 dB input attenuation)

See Table 3-3 for values.

Test Description

The Displayed Average Noise Level (DANL) of the spectrum analyzer is measured across a
10 kHz frequency span at several center frequencies. The analyzer input is terminated into
a 50Ω load. A test is performed to assure the measurement is not performed in the
presence of a residual response. The measurement is then averaged, and the result is
normalized to a 1 Hz bandwidth.
Item
Termination
Figure 3-3 DANL Test Setup

Procedure

1. Configure the equipment as shown in
2. Press (Factory Preset) on the analyzer.
Preset
3. Set up the spectrum analyzer by pressing:
,
FREQUENCY Center Freq
,
Input/Output RF Coupling, DC
Span, 10 kHz
, –70,
AMPLITUDE
,
Amplitude Attenuation
, 1,
BW/Avg kHz
Video BW, 100 Hz
(On), 20,
Average
Chapter 3
Critical Specifications
(for this test)
50Ω Type-N(m)
Figure
, 5.
MHz
dBm
, 0,
dB
Enter

Displayed Average Noise Level (DANL)

Recommended
Agilent Model
909A Option 012
3-3.
PSA Functional Tests
125